The fuze Doppler echo algorithm of near-field electromagnetic scattering model

A algorithm of fuze terminal trajectory Doppler echo signal is established based on the near-field electromagnetic scattering model and fuze echo model, which can calculating electromagnetic scattering characteristics of CAD model, and the fuze Doppler echo signal. Considering the questions of the shelter of the target and local irradiation, the algorithm mainly uses physical optics method(PO) and equivalent edge currents (EEC). Comparing with the measured data, the analysis shows that the example results using the algorithm mentioned above are, very consistent. The algorithm is reliable, and could provide the basis and approaches for proximity fuze design because of practicality and versatility.